Rhoscolyn headland

St Gwenfaen's Well (also known as Welsh: Ffynnon Gwenfaen, Welsh: Ffynnon Wenfaen and Welsh: Ffynnon Gwenfai) is an early medieval holy well in the south west of Holy Island, Anglesey, named after St Gwenfaen, whose cloister was nearby. The site includes substantial remains of a building and is both a scheduled monument and a Grade II listed building.

Rhoscolyn is a village and community located on Holy Island, Anglesey, Wales. It is just over five miles south of Holyhead and is the most southerly settlement on the island. The name Rhoscolyn is said to mean "The Moor" (Rhos) of The Column (colyn), referring to a pillar which the Romans put up to mark the edge of their territories.

St Gwenfaen's Church is in the village of Rhoscolyn, Isle of Anglesey, Wales. The church was established in AD630, and was dedicated to St. Gwenfaen. The current church was erected in the Gothic-revival style, replacing the earlier building. It "was built in 1875 and enlarged by the addition of a chancel in 1879 .....

Glannau Rhoscolyn is a Site of Special Scientific Interest (or SSSI) in Anglesey, North Wales, and extends along the west coast of Holy Island, Anglesey for approximately 6.5 km (from Porthygaran to Silver Bay). It has been designated as a Site of Special Scientific Interest since January 1961 in an attempt to protect its fragile biological and geological elements.